Unknown “dev” option. Please use “compilerOptions” for any Svelte compiler configuration.

The error occurs in rollup-plugin-svelte.

Errors of this kind:

svelte ({
// enable run-time checks when not in production
dev:! production,
// we’ll extract any component CSS out into
// a separate file – better for performance
css: css => {
css.write (‘public / build / bundle.css’, false);
}
}),
[rollup-plugin-svelte] Unknown “dev” option. Please use “compilerOptions” for any Svelte compiler configuration.
[rollup-plugin-svelte] Unknown “css” option. Please use “compilerOptions” for any Svelte compiler configuration.

To solve, we roll back:

Or we completely rebuild the configuration in the file according to the updated docks rollup.config.js with updating all dependencies in package.json

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